Non local damage model based on micromorphic formulation

Evangelia Diamantopoulou (1) , Carl Labergere (1) , Khemais Saanouni (1)

1 LASMIS - Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée

This paper presents an experimental-numerical study based on simple tensile test of a high strength metallic sheet, including the diffuse necking stage, up to the large plastic strain and damage localization. A micromorphic approach including nonlocal damage can overcome the mesh dependency problem. The numerical implementation into ABAQUS/Explicit is made for 2D quadrangular elements thanks to the VUEL user’s subroutine. Promising results are obtained which qualitatively are compatible with the experiments.

Domains: Mechanics of materials [physics.class-ph]

Evangelia Diamantopoulou, Carl Labergere, Khemais Saanouni. Non local damage model based on micromorphic formulation. ESAFORM 2016: Proceedings of the 19th International ESAFORM Conference on Material Forming, Apr 2016, Nantes, France. pp.160008. ⟨hal-02279647⟩